Type-writing machine.



w/ TNESSES A. G. F. KURQWSKI.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE 11, m3.

163361, Patented D0014, 19 15;.

INVENTOR W y 7% By A. a, F. xuaowsm. TYPE WRITING MACHINE.

APPLICATION FILED JUNE II. I9I3.

Patented Dec. 14, 1915.

3 SHEET$-SHEET 2.

TIITIEJ .Iu IIIIIIIII III |||||I| WITNESSES.

ATTORNEY A. e, F. KUROWSKI.

TYPE WRITING MACHINE.

APPLICATION FILED JUNE-H. l9l3.

Patented Dec.14,1915.

3 SHEETS-SHEET 3.

ATTORNE p niarirnn srnrns rarnnar @FFJIGE.

ALFRED G. F. KUROWSKI, OF NEW YORK, N. Y., ASSIGNOR T UNDERWOOD TYPE-WRITER COMPANY, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

TYPE-WRITING MACHINE.

Messier.

Specification of Letters Eatent. Patented D0343. 114, 1915.,

Application filed June 11, 1913. Serial No. 772,966.

- To all whom it may concern:

' rack and. carriage then being movable to-' Be it known that l, ALFREDG. F. KUROW- SKI, a citizen of the United States, residing in Brooklynborough, in the county of Kings, city and" State of New York, haveinvented certain new and useful Improvements; in Type/Writing Machines,of which the following is .a specification.

My invention relates to power apparatus for operating the line-spacemechanism and returning the carriage at the completion of eachtypewritten line.

An object of the invention is to provide an improved form ofdriving-connections,

comprising a rack and pinion, between the motor, the carriage, .and theline-space mechanism.

.A further feature of the invention is to provide an improved means forautomatically cutting 'oifthe power and disconnecting the motor beforethe carriage has completed its return movement, the point of cut-ofi"being automatically varied to correspond with the distance through whichthe carriage is returned; i The invention further provides means forregulating the point of cut-off to correspend with the adjustment of themarginstop which controls the left-hand margin of the work-sheet.

An electric motor is geared to a drive shaft having a pinion meshingwitha rack on the carriage frame. .Said rack through suitable connectionsoperates a cam to actuate. the line-s acer, the rack having a limitedlongitu inal movement relative to the carriage to permit such operation,the

gether as a unit to return the carriage preparatory to Writing a newline.

The motor circuit 1s closed a key lever which moves a frame carrying amovable switch contact into engagement with a stationary contact. Saidframe also operates a clutch to connect the motor with the. drivingshaft. As the 'carriage approaches the limit of its return movement,v

' said frame is automatically released to open the clutchand theelectric switch, by means.

of an actuator consisting of-a depending finger carried by a nut whichis threaded .on the drive shaft and travels downward during the returnof the carriage; Said finger operates through an interponen't member andan adjustable wedge to actuateby means of a trip for releasing theswitch frame. The

interponent member is moved along the wedge during the letter-feedtravel of the carriage, and thereby automatically set to cut off thepower at a-point in the carriage .return varying with the distance thecarinafter appear.

In the accompanying drawings, Figure 1 I is aperspective rear view of anUnderwood typewriting machine with my invention ap 'plied there'to- Fig.2 is a top plan view showing the power-operated means for operating thellne-space mechanism. Fig. 3 is a part sectional front elevation View ofthe invention, the parts being in the position assumed as the carriagenears the end of a 11116 in 1ts forward movement, and the indicatorbeing set at an intermediate position.

Fig. 4 is a View showing the relation of the parts shown in Fig. 3, asthe carriage nears the end of its return movement, but before the triphas operated to open the motor circuit. Fig. 5 shows the parts as viewedfrom the right-hand side of Fig. 4:. Fig. 6 shows the position of theparts when the carriage is at the end of its forward movement and afterthe switch has been closed, the margin indicator being set at zero. Fig.7 is a similar view, but with the indicator shifted to its extremeposition in the other direction. Fig. 8 shows'the relation of parts asthe carriage nearsthe end of its return movement and is in the act ofoperating the trip to open the switch. Fig. 9 shows the position of theparts when the carriage is at an intermediate position in its forward 1travel.

rotary platen 4 is journaled in. a platen frame 5 connected to a rockshaft 6 on the carriage frame, whereby the, platen maybe shiftedto upperand lower-case positions.

Aline-space wheel 7 fixed to the platen axle 8 is rotated by a pawl 9pivoted on a slide 10 operated by an arm 11 on the line-space lever 12.A, returning spring 13 is connected at its ends to said slide and theplaten frame.

A spring-pressed detent l4 bearing against the line-space wheel holdsthe platen in adjusted position. The carriage is driven in a forwarddirection by a spring barrel 15 connected through a band 16 to thecarriage.

The forward or'letter-feed movement of the carriage is controlled byescapement.

mechanism comprising escapement dogs 17 cotiperating with an escapementwheel 18- driven by a pinion 19 in mesh with a rack 20 on the carriage.The escapement dogs may be actuated in the usual manner by a universalbar in the path of the type-bars.

The return movement of the carriage may be effected by an electric motorM mounted on a bed plate or frame 21 which may be secured to the machineframe 3. On the motor shaft is a worm 22 running in mesh with a wormgear 23 carried by a clutch member 24 loosely mounted on a verticaldrive shaft 25. Said shaft is iournaled in upper and lower arms 26 and27 on a vertical standard 28 on the frame 21.

Fixed to the drive shaft 25 is a Pinion 29 in mesh with a rack 30parallel with the platen and having a limited sliding movement in thedirection of its length in a guide rail 31 fixed to the carriage frame.A rod 32, parallel with the rack 30 and supported in brackets 33 on therail 31, extends loosely through an opening in a standard or post34rising from the rack. A link 35 connects the standard'34 with an arm 36which rocks on a shaft 37 and carries a cam 38. The cam engages ananti-friction roller 39 on a sliding bar 40 to which is secured'adepending plate or lug 41 in front of a pin 42 on the slide 10. It willbe seen that, through the connections just described, a longitudinalmovement of the rack 30 in the guide rail 31 will actuate .the cam 38and thereby move the slide bar 40 rearwardly. carrying with itthe'line-snace pawl and slide to rotate the platen. The line-spacemechanism, however, may beoperated independentlv of the power mechanismif desired, the slidebar 40 remaining stationary when the lever 12 isoperated.v A collar 43 adiustable on the rod 32 forms an adjustable stopto limit the return movement of the cam. When the rack 30 is driven bythe electric motor. -it moves first in the guide rail 31 to actuate theline-space mechanism as above described, and then the rack and carriageare moved together as a unit to return the carriage. When the motor' isdisconnected from the rack. the line-space mechanism andthe rack arerestored to initial position by a spring 44.

59. Thejfreeend of'thetarm 58 extends beneath-the switch frame ;49. Whenthe key engagement [wit The circuit for the electric motor Misestablished by closing a switch comprising a stationary contact 45mounted on a base 46 and a movable contact 47 in the form of a 55 isdepressed, the arm-'58 lifts the switch frame; and brings the switchcontact 47 into the contact 45. The upward movement of the switch frame49 is opposed-by a"spring: 601(Fig. 4) which also tends to swing-saidframe about its pivot 61, but .such swinging movement is controlled by abracket 62 having a vertically disposed face'against which bears apin 63on the arm 50 of the frame. ,As'said' frameis thuslifted, and- ,after..t'he switch contacts have been brought together, the frame is snappedforward'f as'the pin- 63 is permitted to enter a notch 64 inthe bracket62, said notch forming a ledge tosupport the pin, and with it the frame,in operated position.

The clutch comprises the upper member 24 already referred to, vwhichcarries the worm gear23, and islooselv mounted on the drive shaft 25 andheld against vertical movement by the bracket 54. A lower clutch member65 is vertically movable on the shaft into and out-of clutchingengagement with the member 24, but isprevented from rotat-' ingindependently of the shaft by a key .66 working in a groove 67 in theshaft. The clutch members 24 and-65 are respectively provided withclutch teeth 68 and 69, the latter being yieldinglv mounted. as shown inFig. 3. The lower clutch member is lifted by the clutch lever 52 tooperative position when the frame 49 is lifted, and thereby establishesa driving connection between the motor M and the drive shaft 25.

The lower end of the shaft 25 is threaded to receive a nut 70 which isprevented from rotating with the shaft and thereby caused to travel upand down on the shaft during the forward -and. return movement of thecarriage. A depending finger 71 adjustable in the nut 70 o e atesthrough interponent members '72 and 73 to actuate a trip lever 74, andthereby trip the frame 49 to open the switch and the clutch. The triplever 74 isin the form of a bell crank pivoted at 75. and having an armextending upward behind a pin 76 on the arm 51 of the switch frame 49.The other arm of the bell crank carriesa' pin 77 on which rests theinterponent mem er 73, which is in the form of a cam or wedge on the endof a horizontal arm I interponent 72 is carried inward a. distancecorresponding to the travel of the carriage.

As the interponent moves upward along-the cam 73, the point at whichthecut-ofi takes place in the return movement of the carnage isgradually changed. If, for example, a.

complete line is written, the interponent 72 is elevated sutliciently toeffect the cut-01f of the power at a comparatively early point in thereturn travel of the carriage so thatthe momentum of the carriage willbe substantially overcome by the opposing motor 15 before the carriageis brought to the limit of its travel, and aneasy stop thereby is'effected. If the carriage is returned from an intermediate position, theposition of the interponent will be such as to cause a cut-01f at alater period 3 corresponding tov the shorter distance required in whichto slow down the carriage owing to the smaller momentum acquired duringthe -comparatively short return movement. The finger 71 which forms anactuator for operating the trip is adjustable 'up and down in the nut'tovary the point of cut-off to correspond with the power of the electricmotor or other factors determining the proper point of cut-off.

During the return movement of the carriage the arm 7 9'is heldstationary by a friction device, as shown in Fig. 5, comprising apivoted arm 82 carrying a bow spring 83 between the arm 82 and theinterponent 72. While the carriage is returning, the switch frame 49 isin its elevated position, as

shown in Fig. 5, and the arm 51 holds the arm 8.2 in position tocompress 'the spring 83 and apply pressure to the interponent 72 to holdit in adjusted position. When the power is cutoff, and the switch frame49 falls, a cam recess 84 in the arm 51 permits the spring 83 to swingfree of the interponent. The holding pressure on the latter beingremoved, it is free to be returned to its starting position by a spring85.

The point at which the carriage is stopped at the end of its returnmovement is controlled by a carriage stop 86' adjustable along the scale8 7v on the machine frame, this stop determining the width of thelefthand margin of the work-sheet.

In order to vary the point of cut-off for the motor M to correspond tothe adjustment of the carriage stop 86, the wedge 73 is made adjustable,the arm 78 carrying said wedge being connected to a rock arm 88 on arock effect an earlier cut-off of the motor.

shaft 89 to the forward end of which is fixed an arm 90 connectedthrough a link 91 to a disk 92 pivoted to a dial plate 93. The latter isprovided on its front face with scale markings or numbers over whichtravels a pointer 94 on the disk 92, adjustable by means of a button 92on the disk, said numbers corresponding to the markings on the scale 87.Vhen the pointer 94: is moved to the right from the zero position (Fig.6), the wedge 73 is carried to the left, as indicated in Fig. 7 andthereby positioned to The pointer 94 is set to correspond with theposition of the pointer on the stop 86. Thus, as shown in Fig. 3, thestop 86 is at 20 on the [scale and the pointer 94 is also ats20 onresponding distance to the right.

the dial, themechanism for adjusting the wedge 73 being proportioned tovary the point'of cut-off to correspond with the adjustment of thecarriage stop.

It will be noted that three different means are provided for regulatingthe point of cutoff for the motor M; first, the actuator 71,

.Which is adjustable to suit the strength of the motor, weight of thecarriage, etc; second, the interponent 72 is automatically adjustedduring the travel of the carriage to correspond with the length of linewritten; third, the wedge 73 is adjustable to correspond with theposition of the carriage stop.

work-sheet and the pointer 94 correspondingly adjusted on the dial. Asthe carriage travels forward during the writing of a line, the shaft 25is rotated by the rack 30 on the carriage, but as the clutch is open; nomotion is imparted to theel'ectric motor. this forward movement the nut70 travels upward and cams the interponent 72 a cor- When a line or partof a line has been written and 4 it is desired'to return the carriage tostartmembers together.

ingposition, the operator depresses the key 55, and therebvlifts theswitch frame 49, closing the switch and bringing the clutch The upwardmovement "of the switch frame also cams the arm 82 to theleft (Fig. 5)and frictionally holds the interponent 72 stationary. The motorcircuit-being thus established and the clutch operated, the motorstartsanddrives the rack 30, operating the line-spacemechanism, and thendrives the rack and carriage as. a

unit toward starting position. During this return movement the actuator71 on the nut descends until it engages the interponent '72 anddepresses the latter and the wedge 73,

During operating the trip 74 and releasing the switch frame from thebracket 62. The current' being cut off from the electric motor and theclutch opened, the carriage is gradually slowed down by the motor 15.The interponent 72 being released from the spring 83 as the switch framedrops, is immediately thrown to starting position.

Although the invention is herein shown as adapted and applied to anUnderwood typewriting machine, it will be understood that the principlesinvolved may be applied to various other makes of machines.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

Having thus described my invention, I claim:

1. In a typewriting machine, the combination with a carriage, arotatable platen thereon and line-space mechanism, of a rack extendingin the direction of the carriage travel and having a. limited movementrelative to the carriage, means operated by the rack during said limitedmovement to operate the line-space mechanism, a motor to drive the rackand carriage in one direction, a clutch between said motor and carriage,means to automatically operate the clutch to release the carriage fromthe motor, and means operated by the carriage to automatically vary thetime at which the clutch is operated.

2. In a typewriting machine, the combination with a carriage having aletter-feed travel, a rotatable platen thereon and linespace mechanism,of a rack extending in the direction of the carriage travel and having alimited movement relative to the carriage, means operated by the rackduring said limited movement to operate the line-space mechanism, apower device to drive said rack and thereby operate the line-spacemechanism and return the carriage, means to automatically disconnect thecarriage from the power device during the return of the carriage, andmeans operated by the rack during the letter-feed travel of the,carriage to automatically determine the period at which the carriage isdisconnected.

3. In a typewriting machine,the combination with a carriage, a rotatableplaten and line-space mechanism, of a rack on the carriage, meansconnected thereto to operate the line-space mechanism, a pinion in mesh;with said rack, a motor, gearing between the: l motor and said pinioncomprising a clutch,

a trip operated by the carriage to open the clutch; and an interponentbetween the trip and carriage and operated by the carriage toautomatically vary the period in the travel of the carriage at which thetrip is operated.

4:. In a typewriting machine,.the combination with a carriage, arotatable platen and line-space mechanism, of a member slidably mountedon the carriage for movement longitudinally thereof, connections betweensaid member and line-space mechanism for actuating the latter, means todrive said member to operate the line-space mechanism and then returnthe carriage, means to disconnect said slidable member from the drivingmeans when the carriage is at an intermediate point during its returntravel, a stop adjustable to variably limit the return movement of thecarriage, and means to vary the said point of disconnection tocorrespond with the adjustment of the stop.

5. In a typewriting machine, the combination with a carriage, a platenand a linespace mechanism, of a slide movable trans versely of theplaten to operate said mechanism, a cam to operate said slide, a rackbar extending longitudinally ofthe carriage, a connection between therack bar and said cam, a motor for moving the rackvbar on the carriageto operate the line-space mechanism and then moving the rack bar andcarriage as a unit, an adjustable stop for the carriage, means toautomatically disconnect the motor from the carriage as the latterapproaches the limit of its travel determined by said stop, and means toadjust said point of disconnection to correspond with the adjustment ofsaid stop.

6. The combination with a carriage, a rotatable platen and line-spacemechanism, of a rack on the carriage, means connecting the rack to theline-space, mechanism, a motor, gearing comprising a clutch between themotor and the rack to drive the latter and thereby first operate theline-space mecha nism, and then drive the rack and carriage as a unit toreturn the carriage, a trip to release the motor from the rack duringthe return of the carriage, and an interponent between the carriage andtrip and adjusted by the forward travel of the carriage to vary thepoint at which the trip is operated to correspond to the distancethrough which the carriage is returned.

7. In a typewriting machine, the combif nation with a carriage, a motorto drive it forward, and'a secondmotor to return the carriage, of adrive shaft geared to said second motor, a rack and pinion between saiddrive shaft and the carriage, means operated by said drive shaft toautomatically cut off the power during the return travel of thecarriage, and means to automatically vary the point of cut oiftocorrespond with the distance through which the carriage is returned.

8. The combination withfafcarriage and a motor to return the carriage,of a drive shaft, a driving connection between said shaft and thecarriage, gearing between said shaft and motor comprising a clutch, atrip device to hold the clutch .in operative position and a nuttraversed by said shaft to ace during the return movement of thecarriage.

9. The combination with a carriage and a motor to return the carriage,.of a drive shaft, a driving fiOIlIlQCtlOIl between said shaft and thecarriage by which the shaft is positively driven when the carriage ismoved in either direction independently of the motor, gearing betweensaid shaft and motor comprising a clutch, and'means operated by saidshaft to open said clutch during the return movement of'the carriage atI a point automatically variable to correspond ,wlth the distancethrough which the carriage is returned.

10. In a typewriting machine, the combination with a'carriage and amotor to re turnthe carriage, of a drive shaft geared to the carr1age,gear1ng between the drive shaft and motor comprising a clutch, a manualdevice to operate the clutch and establish a. driving connection fromthe motor to the carriage, a trip to release the clutch, and anactuating device operated by the drive shaft to operate the tripjand-disconnect the clutch members during the return travel of thecarriage,.the drive shaft being rotatable the carriage when the latteris .operated in either direction, whereby the position of said actuatingdevice relative to the drive shaft is determined and controlled by theposition of the carriage.

11. In a typewriting machine, the combination with a carriage and amotor to return.

the carriage,.of a.drive shaft geared to the carriage and rotatable bvthe carriage in both directions; gearing between the drive shaftandmotor comprising a clutch, a manual device to operate the clutch andestablish a driving connection from the motor to the carriage, a trip torelease the clutch, and an actuating device operated by the drive shaftto operate the trip and disconnect. the clutch. members during thereturn' travel of the carriage at a point au-tomatically' variable tocorrespond with the position of the carriage at the moment the clutch12..In a typewriting machine, the combination with a carriage and amotor to return the carriage, of a.drive shaft geared to the carriage,gearing between the motor and drive shaft comprising a clutch, akeyconnected to operate the elutchand thereby connect the motor to drivethe carriage, means to hold the clutch in operated position, a trip torelease the clutch, an actuating device driven by said shaft, and-aninterponent between said actuating device and the trip for: operatingthe latter, said 1n-' terponent being adjustable to effect the op-'eration of the trip 'at'difi'erent points in the travel of the carriage.

13. In a typewriting machine, the combi;

nation, with a carriage and a motor to return 7 connect the motor todrive the carriage,

' eling nut threaded on the' drive shaft for means'to hold the clutch inoperated posrtion, a trip to release the clutch, an actuatingdevice'dr-iven by said shaft, an interponent between said actuatingdevice and the trip for operating the latter, and means to automaticallyshift the interponent during the forward travel of the carriage, andthereby vary the pointat which tlietrip is actuated to correspond withthe. distance through whichthe carriage is returned.

14. In a typewriting machine, the combi-'- nation with a carriage and amotor to return the carriage, of a drive shaft having a rack and pinionconnection with the carriage, gearing between the motor and said shaftcomprising a clutch,-'a key .to operate saidclutch and connect the motorto the drive shaft, means to hold the clutch in operated position, atrip to release the clutch,-a travoperating the trip, an interponentbetween said nut and the trip, and means to cause a movement of theinterponent throughout the forward travel of the carriage so that thetrip will be actuated when the carriage has reached a point in itsreturn movement automatically varied to correspond with the'position ofthe carriage at the time the clutch is operated.

the carriage, of-a drive shaft geared to the carriage, gearing betweenthe motor and said shaft comprising a clutch, a key to operate theclutch and connect the motor'lou to the drive shaft, means to hold theclutch in operated position, a trip to release the clutch, a travelingnut on said shaft, an 1nterponent, a cam between sai d nut and the trip;and a second cam operated bysaid nut to cause'the interponent to travelalong Silldf first-named cam during the forward travel of the carriage,and thereby vary the point' at-which the trip will be actuated-duringthe return movement of the carriage.

16. In a typewriting machine, the combination, with a carriage, a motorand connections from the motor to the carriage for returning the latter,of a device to cause the power of the return drive to be cut on .afterthe carriage has traveled part way to the startingpoint, said devicehaving a variable adjustment or movement au tomatically propo'rtioned ineach instance to. the extent of letter-feed forward movement of thecarriage, whereby the device is set to cause the power tofbe out offwhen the carriage is a greater. or less distance fromthe limit of itsreturn movement in accordance with the length 'of the line from whichthe return is made, an adjustable carriage stop, and

means cooperating with said cut-off device to additionally vary thepoint of cut-oflf to correspond with the position of the carriage stop.

17. In a typewriting machine, the combination with a carriage, a motorand connections from the motor to the carriage for returning the latter,of means to cut oif the power after the carriage has traveled part wayto the starting point, means to vary the time of such power cut-ofl" forsuccessive lines so that the distance of the carriage from the startingpoint is automatically varied in accordance with the length of the linefrom which the return is made, an adjustable carriage stop determiningsaid starting point, and mechanism for additionally varying the time ofthe power cut-ofi' to correspond with the position of the carriagenation with a carriage and power-operated automatically variable withthe length of line from which the carriage is returned and variable withthe position to which the carriage is returned.

19. In a typewriting machine, the combination with a carriage and apower-operated return mechanism therefor, of means to cut ofl the powerwhen the carriage is at a point automaticallyvariable with the positionfrom which the carriage is returned, an adjustable carriage return stop,and a device settable to correspond with said return stop and therebyadditionally vary the point at which the power is cut off to correspondwith the position of the return stop.

20. In a typewriting machine, the combination with a carriage andpower-operated return mechanism therefor, of a carriage return stop,meansto effect a slowing down of the carriage through a range of itsreturn movement automatlcally variable with variations in theacceleration of the carriage, and additional means to control said rangeof movement to compensate for adjustment of said stop.

21. In a typewriting machine, the combination with a carriage, a powerdevice to return the carriage, an adjustable stop to limit the returnmovement of the carriage, and a scale to indicate the position of saidstop, of means to automatically cut off the power during the returnmovement, a device adjustable in conjunction with said stop to vary thepoint of cut-oil to correspond with the position of said stop, and anindicator to indicate adjustment of said device corresponding to theadjustments of the said stop.

22. In a typewriting machine, the combination-with a carriage, of apower device to return the carriage, a carriage stop, a scale toindicate the position of said stop, means to cut ofi" the power duringthe return movement of the carriage, a device adjustable to vary thepoint at which the power is cut off during the return of the carriage, asecond scale, a pointer movable oversaid scale, and operatingconnectionsbetween said pointer and said adjustable device.

23. In a typewritingmachine, the combination with a carriage, a powerdevice toreturnthe carriage and means to cut ofl? the power during thereturn travel of the carriage, of scales, pointers working over saidscales, a carriage stop connected with one pointer, and a deviceconnected with the other pointer to vary the point of power cut-off tocorrespond with the position of the carriage stop, whereby when thepointers are adjusted to corresponding positions on the scales, theslowing down of the carriage will take place through approximately thesame length of travel of the carriage for any adjustment of thepointers.

, 24. In a typewriting machine, the combinationwith a carriage, a powerdevice to return the carriage and means to automatically cut oil thepower during the return travel of the carriage, of a device adjustableto vary the point at which thepower is cut off, and an indicatoroperatively connected to said device.

25. In a typewriting machine, the combination with a carriage and amotor to return the carriage, of an element having a positive drivingconnection with the carriage enabling the carriage to drive said elementin either direction, gearing comprising a clutch between the motor andsaid elethe carriage, of a shaft having a permanent driving connectionwith the carriage, enabling the carriage to drive said shaft in eitherdirection, a clutch between the motor and said shaft, means to open theclutch during the return travel of the carriage, and a device actuatedby said shaft to vary the point in the carriage travel at which theclutch is opened to correspond with the distance through which thecarriage is re turned. a

27. In a typewriting machine, the combination with a carriage and apower device to drive the carriage, of means to automatically cut oilthe power from the carriage before the carriage has completed itsmovement, said cut-0E means comprising a device adjustable to cause thepower to be cut off when the carriage is at a point variable with theadjustment of said device, and an indicator connected to said adjustabledevice and movable therewith.

28. In a typewriting machine, the combination with a carriage and apower device to drive the carriage, of means to automatically cut offthe power from the carriage before the carriage has-completed itsmovement, said cut-0E means comprising a de- 'vice adjustable to' causethe power to be cut off when thecarriage is at a point variable with theadjustment'of said device, an

indicator connected to said device, and an adjustable stop to limit thetravel of the carriage, said indicator comprising a graduated scale toenable said cut-off device to be set to correspond with the adjustmentof the carriage'stop.-

29. In a. typewriting machine,-the combinatlon with a carriage, of amotor to drlve the carriage, an adjustable stop to limit the travel ofthe carriage, means to automati-t cally cut off the driving power of themotor from the carriageibefore the latter has reached said.stop, wherebythe carriage may be slowed down before it reaches the stop, said cut-oilmeans comprising a device ad-.

justable to vary the time at which the power is cut off, and anindicator connected to said device and adjustable therewith, saidindicator comprising a pointer movable over a scale, graduated to enablethe adjustable device to be set to correspond with the adjustment of thecarriage stop.

30. In a typewriting machine, the combination with a carriage, acarriage stop and a graduated scale to indicate the position at whichthe stop is set, of a motor to drive the carriage, means toautomatically cut off the driving power of the motor from the carriagebefore the carriage reaches said stop, said cut-off means comprising adevice adjustable to vary the time of cut-off to correspond with'theadjustment of the carriage stop, and an indicator connected to saidadjustable device for movement when said device is moved, said indicatorcomprising a pointer-and a graduated-scale over which the pointer moves,which pointer when set at the scale graduation corresponding to thesetting of the carriage stop along its scale causes the power to be cutoff when the carriage is at a predetermined distance from the stop, saiddistance being substantially the same for all adjustments of the.

carriage stop' when the said pointer is set to correspond with theposition of the carriage stop.

31. In a typewriting machine, the combination with a carriage and amotor to dri e the carriage, of a device to cut off the driving power ofthe motor from the carriage during the travel of the carriage, anadjusting device ad ustable to cause the power to be cut ofi while the,carriage is in a position determined by the adjustment of saidadjustingdevice, indicating means comprising I ascale with numbered graduations,and a pointer moving over the scale, saidpo'inter connected to saidadjusting device for operating the latter and shifting the point ofcut-ofi' through a number of letter-spaces corresponding to thedifference between the numbers from one to the other of which saidpointer has been moved over the ,scale.

32. In a typewriting machine, the combination with a carriage and amotor for returning the carriageafter each line of writing, of a keyoperable to cause the motor to return the carriage, a device forautomatically cutting off the driving power from the carriage before thecarriage has completed its return travel, an'adjusting device operatedduring the forward or'letter-feed travel of the carriage to a positiondeter mined by the lengthof the-line written, said adjusting deviceoperable tovary the point at which the power is cut off to correspondwith the length of the line from which the carriage is returned, wherebythe carriage is slowed down afterthe power is cut off through a distancevarying with the length of line from which'the carriage has beenreturned, an adjustable stop to limit the return movement of thecarriage, and a manually adjustable device cooperating with saidfirst-named adjusting'device and settable to vary the'point of cut-offto correspond with the adjustment of saidstop.

33. In a typewriting machine, the combination with a carriage and amotor for returning the carriage after each line of writing, of a keyoperable to cause the motor to return the carriage, a device forautomatically cutting off the driving power from the carriage before thecarriage has" completed its return travel, an adjusting device operatedduring the forward or letter-feed travel of the carriage to a positiondetermined'by the length of the line written, said adjustingdeviceoperable to vary the point at which the power is cut ofi' tocorrespond with the length of the line from which the carriage isreturned, whereby the carriage is slowed down after the power is cut offthrough a-distance varying with the length of the line from which thecarriagehas been returned, an adfor effecting a driving connectionbetween the motor and carriage, a trip to release said clutch andthereby disconnect the motor from the carriage during the travel of thecarriage, a trip-operating device geared to the carriage for movement inunison therewith, a series of interponents between said operating deviceand the trip, each adjustable independently of the other to vary thepoint at which, during the travel of the carriage, the trip is operated,means automatically operated during the forward travel of the carriageto shift one of said interponenets to a position determined by thelength of the line Written, to thereby automatically vary the point ofcut-off to correspond with the length of line from which the carriage isreturned, an adjustable stop to limit the return movement of the 1 riagethrough which the motion of said shaft is transmitted to the carriage toreturn the carriage, and through which the carriage is operative todrive said shaft during the forward travel of the carriage, a nutthreaded on said shaft to travel therealong as the shaft rotates, andmeans operated by said nut to open the clutch during the return travelof the carriage.

36. In a typewriting machine, the combination with a carriage and amotor to return the carriage, of a shaft, gearing comprising a clutchbetween said shaft and the motor for causing the motor to rotate saidshaft, gearing between the shaft and carriage through which the motionof said shaft is transmitted to the carriage to return the carriage, andthrough which the carriage is operative to drive said shaft during thefor- 'ward travel of the carriage, a nut threaded on said shaft totravel therealong as the shaft rotates, means operated by said nut toopen the clutch during the return travel of the carriage, and a devicealso operated by said nut to automatically vary the point in thecarriage travel at which the clutch is opened in accordance withvariations in the position from which the carriage is returned.

37. In a typewriting machine, the combination with a carriage and anelectric motor to return the carriage, of a drive shaft, gearingcomprising a clutch between the drive shaft and the motor for causingthe motor to rotate said shaft, gearing between the shaft and carriagethrough which the motion of said shaft is transmitted to the carriage toreturn the carriage, and through which the carriage is operative todrivesaid shaft during the forward'travel of the carriage, aswitchcontrolling the supply of current to the motor, a switch frameconnected to the switch and clutch, a key for operating said frame toclose the switch and clutch, a device to hold said frame in operatedposition, a trip to release said frame, and a device driven by saidshaft for operating the trip during the return travel of the carriage.

38. In a typewriting machine, the combination with a carriage and anelectic motor to return the carriage, of a drive shaft, gearingcomprising a clutch between the drive shaft and the motor for causingthe motor to rotate said shaft, gearing between the shaft and carriagethrough which the motion of said shaftis transmitted to the carriage toreturn the carriage, and through which the carriage is operative todrive said shaft during the forward travel of the carriage, a switchcontrolling the supply of current to the motor, a switch frame connectedto the switch and clutch, a key for operating said frame to close theswitch and clutch, a device to hold said frame in operated position, atrip to release said frame, a device driven by said shaft for operatingthe trip during the return travel of the carriage, and an interponentbetween said device and the trip automatically operated during theforward travel of the carriage, and controlling the point at which thetrip is operated during the return of the carriage.

39. In a typewriting machine, the combination with a carriage, of anelectric motor, gearing between the motor and carriage to return thecarriage, said gearing comprislng a clutch, a clutch-operating device, aswitch in the motor circuit, a key for closing said switch and operatingsaid device to connect the motor with the carriage, means to hold theclutch-operating device and the switch in operated positionindependently of the key, a trip to release said device and open saidswitch, a trip-operating device geared to the carriage fora-utomaticallyactuating said trip and opening said switch, thereby disconnecting thecarriage from the motor and opening the motor circuit before thecarriage has completed its return movement, means automatically adjustedduring the forward travel of the carriage to positions corresponding tothe length of the forward travel of the carriage to therebyautomatically vary-the time at which, during the return of the carriage,the trip is actuated,

an adjustable carriage stop to limit the return movement of thecarriage, and man- 'ually adjustable means to vary the point at allyvarying the travel, to correspondingly position said controlling device,and thereby automatically vary the point at which the power is cut offduring the return of the'carriage to corre spond to the length'of theline from which the carriage is returned, said connection ofthe-actuator with the carriage operative to cause the actuator to berestored bythe carria-ge during the return of the carriage.

41. The combination with a typewriter carriage and a power device toreturn the carriage, of means to automatically cut off. the power duringthe return of the carriage as it approaches its starting position, saidmeans comprising an actuating device operatively connected tothecarriage, and means positioned thereby during the forward travel of thecarriage to control and vary the point of cut-ofi during the return ofthe carriage to correspond with the length of the line from which thecarriage is returned, the connection between the carriage and saidactuating device being operative to restore the latter when the carriageis returned independently of the power device.

42. The combination with a typewriter carriage and a power device toreturn the carriage, of means to automatically cut off the power duringthe return of the carriage as it approaches 1ts starting position, saidmeans comprising an actuating devlce operatiyely connected to thecarriage, means p0- sitioned thereby during the forward travel of thecarriage to control and vary the point of cut-off during the return ofthe carriage to'correspond with the length -of the line from which thecarriage is returned, the connection between the carriage and saidactuating device being operative to restore the latter when the carriageis returned independently of the power device, an adjustablecarriagestop to limit the return movement of the carriage, and means formanupoint of cut-offto correspond with the ad -uStment of said stop;

43. The combination with a typewriter carriage anda motor to returnthe'carriage, said motor disconnected from the carriage during theforward travel of the latter, of means for connecting the motor to-thecarriag'e to return the latter, means for disconnecting the motor fromthe carriage as the latter approaches its initial position during thereturn of the carriage, said disconnecting means comprising a device tocontrol the time at which the motor is disconnected, and an actuator forsaid device, said actuator having a connection with the carriage,whereby it is drivento set said controlling device at a positioncorresponding-to. the length of the line from whieh'the carriage isreturned, and whereby the actuator may be restored by the carriageduringthe return of the latter.

4i. The' combination with a typewriter carriageand. a motor, ofgearing'betwe'en the motorand carriage comprising a clutch open duringthe forward-travel of the car-- riage and permitting thecarriage totravel in either direction while the motor is at rest, means to operatesaid clutch to connect the motor with the carriage and cause the motorto return the carriage, means to hold the clutch inoperated position, atrip to release said holding means and cause the motor to bedisconnected from the carriage, means to automatically actuate said tripduring the return of the 'carriage, said last-named means comprising adevice to control the time at which, during the carriage return, thetrip is actuated, and an actuator geared to the carriage and driventhereby during the forward travel of the carriage, to position saidcontrolling devicefor effecting the disconnection of the motor at apoint automatically-variable with the length of the line from which thecarriage is returned, the gearing between said actuator and carriageoperative to effect the restoration of the actuator during return of thecarriage either manually or by the motor.

45. In a typewriting machine, the combi nation with a carriage and amotor to return thecarriage, of a gear trainbetween the carriage andmotor comprising a clutch, akey to operate said clutch and connect-themotor to the carriage for returning the lat ter, means for holding theclutch in operated position independently of the. key, means toautomatically open the clutch during the return of the carriage, saidclutch-opening means comprising a device to control the time at whichthe clutch is released, andan actuator having adriving connection withthe-carriage and operative to" set said controlling device during theforward travel of the carriage, to a position corresponding to theextent of. said forward travel, whereby the point at which the motor isdisconnected from the carriage is automatically varied to 4 correspondwith the length of the line from which the carriage is returned, thecarriage being manually returnable independently of the motor, and saidconnection between the carriage and actuator being operative to restorethe latter during the return of the carriage either manually or by themotor.

46. The combination with a typewriter carriage and a motor, of a drivingconnection between the motor and carriage comprising a normally openclutch permitting the carriage to be advanced and returned while the.motor remains at rest, means to operate the clutch for connecting themotor to the carriage to return the latter, means to open the clutchduring the return of the carriage, and means to automatically vary thepoint at which the clutch is opened and the motor disconnected, tocorrespond to the length of the line from which the carriage isreturned, said last-mentioned means comprising an actuating devicehaving a connection with the carriage for moving said device during theforward travel of the carriage to a point-corresponding to the extent ofsaid forward travel, and whereby said actuating device is returned bythe carriage as the latter is manually returned.

47. The combination with a typewriter carriage, a motor, and connectionsfrom the motor to the carriage for returning the latter, of means to cutoff the power before the carriage has completed its return travel,

means to vary the time of such'power cutoff for successive lines so thatthe distance of the carriage from the starting point at the time ofcut-ofl is automatically varied in accordance with the length of theline from which the return is made, an adjustable carriage stop todetermine the starting position of the carriage, means settable toadditionally vary the time of the power cut-off to correspond with theposition of the carriage stop, and manually adjustable means to furthervary the time of the power cut-oil independently of the adjustment ofthe carriage stop or the length of line from which the carriage isreturned.

48. In a typewriting machine, the combially vary the point at which thepower is cut off to'correspond with the position of the return stop, andindependently adjustable means to further vary the point at which thepower is cut ofl to correspond with the length of carriage travelrequired after the power has been cut oil, to effect said slowing downof the carriage.

ALFRED G. F. KURO'WSKI.

Witnesses:

TITUS H. IRONS, F. E. ALEXANDER.

